<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
空指针，请联系管理员：<span th:text="${error}"></span><span th:text="${dianhuahao}"></span>

</body>
</html>